Laser Marking Qhov tob tsis sib xws? Ib kauj ruam -los ntawm - Cov kauj ruam daws teeb meem

Kev tsis sib xws ntawm qhov tob yog ib qho kev tsis txaus siab tshaj plaws hauv laser npav ntau lawm - thiab feem ntau cov laser qhov chaw tsis yog qhov ua txhaum. Ua ntej koj teem sijhawm hu rau lub Hoobkas, faib cov tsos mob kom raug thiab ua haujlwm los ntawm cov txheej txheem ua ntu zus:Optical txoj kev → electronics/software → mechanics → material. Ua kom pom tseeb offset, worktable flatness, contaminated optics, parameter teeb thiab cov ntaub ntawv batch account rau feem coob ntawm cov neeg mob. Tsuas yog thaum lub hwj chim drift, galvo teeb meem lossis F-theta lens puas raug xav tias koj puas xav tau cov chaw tsim khoom- theem kev kuaj kab mob hauv thaj chaw deb lossis ntawm - mus saib hauv qhov chaw.

Phau ntawv qhia no piav qhia txog yuav ua li cas qhia plaub yam tseem ceeb ntawm qhov sib txawv ntawm qhov tob tsis sib xws, yuav ua li cas txheeb xyuas txhua qhov system subsystem, thiab thaum twg yuav tsum tsis txhob daws teeb meem thiab hu rau tus neeg muag khoom. Qhov twg cov lej tshwj xeeb tshwm sim, lawv yog cov lus qhia kev lag luam sawv cev nkaus xwb - ib txwm lees paub qhov kev teeb tsa zaum kawg los ntawm kev sim- cim koj cov khoom siv tiag tiag.

1. Ua ntej, txheeb xyuas hom "qhov tob tob" uas koj tab tom pom

"Uneven" tsis yog cov lus piav qhia ua txhaum. Tib lo lus tuaj yeem taw tes rau qhov sib txawv kiag li. Pib los ntawm kev sau cia raws nraim qhov koj pom:

Engineer daim ntawv:Thaum lub rooj pabcuam tau txais daim ntawv tshaj tawm "qhov tob tsis sib luag", thawj cov lus nug feem ntau yog: "Tus qauv twg tsis sib npaug, qhov twg txawv ntawm ib leeg, thiab thaum twg nws pib?" Ib lo lus nug ntawd feem ntau txiav qhov kev tshawb nrhiav ib nrab.

2. Optical Path Check 1: Focus & Defocus

Cov lus teb luv luv:Yog hais tias lub workpiece nto tsis nyob rau hauv lub focal dav hlau, qhov tob yuav txawv.

Lub laser beam muaj nws qhov chaw me me thiab lub zog siab tshaj plaws raws nraim ntawm qhov ua kom pom tseeb. Move the surface away from that plane and the spot grows, energy density drops, and the mark becomes lighter and softer. Cov nyhuv no tshwj xeeb tshaj yog pom tseeb hauv kev sib sib zog nqus engraving.

Feem ntau qhov chaw ntawm defocus:

• Lub worktable tsis tiaj tus, los yog ib feem nws tus kheej yog warped, yog li qee qhov chaw zaum sab nraum lub dav hlau focal.
• Lub lifting kem qhov siab tau hloov los yog lub xauv ntsia hlau yog xoob.
• Cov khoom hauv tib pawg muaj qhov sib txawv ntawm qhov tuab, thiab tsom tsis tau rov qab- kuaj xyuas tom qab hloov pauv.
• Hauv loj -tej cim, cov npoo ntawm cov qauv poob sab nraum qhov tob- ntawm - tsom xam ntau yam ntawm qhov kho qhov muag.
• Tom qab ua haujlwm tsis tu ncua ntev, lub cim yuav maj mam sib dua: dhau li ntawm lub zog drift thiab lens paug, thermal lo ntsiab muag hauv optics tuaj yeem maj mam ua kom pom tseeb. Cia lub tshuab txias thiab rov sim dua - yog tias qhov tshwm sim rov zoo, qhov cua sov yuav zoo li qub.

Daim duab 1: Txawm tias me me tsom drift ua rau poob loj hauv lub zog ceev; qhov luv luv lub focal ntev, qhov muaj zog cov nyhuv.

Yuav ua li cas los xyuas kom meej:

Siv daim coupon daim ntawv pov thawj (qhov tseeb yog tib yam khoom koj siv hauv kev tsim khoom). Pib me ntsis saum toj ib feem, ua ib qho cim me me txhua 1-2 hli ntawm Z qhov siab. Qhov siab uas muab qhov tsaus ntuj tshaj plaws, crispest, sharpest ntug yog lub dav hlau focal. Qhov yooj yim "focus search" no yog qhov siab tshaj -tus nqi thawj kauj ruam rau yuav luag txhua qhov tob- hais txog qhov teeb meem.

On ibfiber laser npav tshuab, qhov focal qhov tob yog qhov ntiav, yog li qhov kev kuaj xyuas no tseem ceeb tshwj xeeb. Ntawm cov tshuab nrog nws pib- tsom, tseem paub meej tias lub sensor yog huv si thiab cov ntaub ntawv siv yog tib yam li qhov chaw.

3. Optical Path Check 2: F-Theta Lens, Galvo Scanner & Lens Condition

F-theta lens flatness

F-theta lo ntsiab muag yog tsim los ua kom lub dav hlau focal ze li ntawm qhov chaw scan, tab sis loj - lo ntsiab muag tseem pom qhov sib txawv me me ntawm qhov nruab nrab thiab ntug. Yog li ntawd:

• Yog tias tus qauv loj qhia pom qhov muag plooj lossis sib dua, thawj zaug rov hais dua lub dav hlau focal.
• Yog hais tias lub dav hlau focal yog lawm tab sis cov npoo nyob twj ywm ntiav, qhov teeb meem muaj feem xyuam rau F-theta lens field flatness. Txawm hais tias lub lens specification yuav tsum tau hloov los yog kho yuav tsum tau soj ntsuam los ntawm cov chaw tsim tshuaj paus raws li cov cim ntau yam, workpiece geometry thiab lens tsis. Tsis txhob disassemble lossis hloov lub lens ntawm koj tus kheej.

Daim duab 2: F-theta lens focal cov ntsiab lus ntawm ntug ntawm qhov chaw scan deviate me ntsis los ntawm lub dav hlau zoo meej.

Galvo scanner

Lub galvo scanner tswj lub nqaj ntawm kev kub ceev. Yog hais tias lub iav yog xoob, lub xoom point tau drifted los yog tus tsav tsheb yog txawv txav, txoj kev scan yuav hloov los yog rov ua tsis zoo. Cov txiaj ntsig pom tau yog hauv zos tshaj - hlawv, tawg me ntsis, lossis ob sab npoo. Nyob rau theem tus neeg teb xov tooj koj tuaj yeem tshawb xyuas:

• Puas yog lub scan suab zoo dua? Puas muaj suab nrov txawv txawv?
• Puas yog cov qauv npoo qhia txog kev ua dab los yog misalignment?

Internal kho galvo yuav tsum tau sab laug rau cov chaw tsim khoom.

Lens huv

Plua plav, pa taws lossis tawg rau ntawm lub qhov rais tiv thaiv lossis F-theta lens absorbs thiab tawg cov nqaj, ua rau lub zog poob. Cov tsos mob yog ib lub ntiaj teb sib zog cim, los yog ib thaj chaw sib zog nyob rau hauv ib qho kev taw qhia los yog sector. Kev ua txhua hnub:

• Tig rau kev rho tawm thaum kos npe kom txo cov pa taws adhesion.
• Ntxuav lub qhov rais tiv thaiv siv cov chaw tsim khoom cov cuab yeej pom zoo thiab hnyav ( tshuab ua ntej, so thib ob, tsis txhob khawb).
• Yog tias F-theta lo ntsiab muag tau kis mus rau qhov cuam tshuam rau lub cim, nug cov chaw tsim khoom los ntsuas kev ntxuav lossis hloov.

Kev ceeb toom kev nyab xeeb:Ua ntej tshuaj xyuas lossis ntxuav cov khoom siv kho qhov muag, kaw lub tshuab, tos kom lub laser qhov chaw nres, thiab hnav cov tsom iav laser kev nyab xeeb ntsuas rau lub wavelength thiab lub zog siv. Tsis txhob ntsia ncaj qha rau hauv txoj kab teeb lossis kov qhov chaw kho qhov muag nrog txhais tes liab qab. Laser kev pab cuam cuam tshuam nrog high voltage thiab kho qhov muag teeb meem; tsis txhob disassemble cov khoom sab hauv tshwj tsis yog tias koj tsim nyog.

Daim duab 3: Lub taub hau galvo scanner nrog F-theta lens ntawm fiber ntau laser npav system.

4. Kev kuaj xyuas hluav taws xob thiab software: Lub zog, sau thiab cov ntaub ntawv pov thawj

Cov lus teb luv luv: hauv qhov hluav taws xob / software qhov ntev, kos peb yam - lub zog ruaj khov, sau / scan tsis thiab qhov ntsuas - cov ntaub ntawv sib xws.

1) Lub zog ruaj khov

Qhov tseeb laser tso zis fais fab yog cuam tshuam los ntawm cov khoom siv hluav taws xob, lub voj voog ua haujlwm, qhov kub thiab txias thiab qhov chaw laser. Yog tias koj saib "tib yam tsis sib xws, sib sib zog nqus thaum sawv ntxov thiab ntiav nyob rau yav tav su" lossis "lub cim tau sib zog dua tom qab khiav mus tas li", lub zog drift yog qhov xav tsis thoob.

Koj tuaj yeem ua dab tsi ntawm tus neeg teb xov tooj: sau lub tshuab tau nyob ntev npaum li cas, qhov kub thiab txias, thiab seb lub tshuab puas tau mus thiab tawm ntau zaus. Txawm hais tias lub hwj chim tau drifted tiag tiag, thiab los ntawm ntau npaum li cas, yuav tsum ntsuas los ntawm cov chaw tsim khoom nrog cov cuab yeej tsim nyog. Tsis txhob qhib lub qhov rooj ntawm lub laser los kuaj nws tus kheej.

2) Sau thiab luam theej duab tsis

Lub teeb-thiab- tsaus nti variation nyob rau hauv tib tus qauv feem ntau tsis yog lub tshuab ua txhaum ntawm tag nrho cov - nws yog ib tug sau - qhov teeb meem parameter:

• Hatch spacing uas dav dhau tawm pom qhov sib txawv ntawm cov kab scan, tsim kom muaj kev ntxhib los mos, tsis sib xws.
• Kev cim ceev uas siab dhau tsis tso cai rau lub zog txaus los sau, yog li tag nrho cov cim yog lub teeb.
• Nyob rau hauv sib sib zog nqus engraving, scan tswv yim (unidirectional, bidirectional, concentric) thiab tus naj npawb ntawm passes ncaj qha cuam tshuam qhov tob uniformity.

A MOPA laser npav tshuabmuab koj cov pob qhov rooj ntxiv xws li mem tes dav thiab lub zog mem tes, uas muaj txiaj ntsig zoo rau kev kho xim thiab qhov tob ntawm stainless hlau thiab titanium. Yog tias koj tsis paub meej thaum MOPA tsim nyog tus nqi ntxiv piv nrog tus qauv Q- hloov fiber ntau, pebQ-Hloov lossis MOPA rau kev kos hlauqhia taug kev los ntawm kev txiav txim siab.

3) Parameter -cov ntaub ntawv sib xws

Thaum ob peb lub tshuab khiav tib yam khoom, lossis ib lub tshuab khiav tib yam khoom ntau zaus, cov ntaub ntawv overwritten los yog tsis ncaj ncees lawm parameter yog ib qho ua rau qhov tob tsis sib xws. Qhov kev kuaj ceev tshaj plaws yog los sib piv cov ntaub ntawv tam sim no nrog cov ntaub ntawv qub uas tau siv thaum tus qauv raug pom zoo thawj zaug.

Engineer daim ntawv:Thaum cov khoom tsis raug pom zoo, txuag lawv ua cov ntaub ntawv tshwj xeeb thiab rov qab. Lub npe cov ntaub ntawv nrog cov khoom, batch thiab hnub tim. Ntau qhov "qhov sib txawv ntawm qhov tob" dhau los ua cov ntaub ntawv uas tau sau dhau los lossis thauj khoom yuam kev.

Tus neeg sawv cev scenario (kev piav qhia nkaus xwb, tsis yog cov neeg siv khoom tshwj xeeb)

Siv stainless-steel sib sib zog nqus engraving ntawm 20 W fiber ntau laser qhov chaw nrog qhov tseeb F-theta lens thiab lub tiaj tus workpiece:

• Ua ntej kev hloov kho: ua kom pom tseeb tsis ntsuas, hatch qhov dav dav, ib qho nrawm dhau → lub teeb / tsaus qhov sib txawv thiab pom kev ntxhib los mos hauv cov qauv.
• Tom qab hloov kho: ua kom pom tseeb tseeb thiab kaw, qhov sib txawv ntawm qhov sib txawv, txo qis, nrawm, ntau- hla engraving → qhov tob sib xws zoo dua.
• Kev lag luam-tawm: tag nrho lub sijhawm voj voog ib feem nce, tab sis rov ua dua thiab seem qis, yog li tag nrho cov khoom tsim tawm ruaj khov dua.

Cov saum toj no yog ib tug neeg sawv cev scenario raws li ib txwm kev lag luam tsis, tsis yog ib tug tshwj xeeb cov neeg siv. Qhov tseeb tsis yuav tsum tau lees paub ntawm koj cov khoom siv, qhov chaw saum npoo, laser qhov chaw teeb tsa thiab cov qauv ntsuas ntsuas.

5. Mechanical Checks: Worktable, Lifting Kem & Fixturing

Cov lus teb luv luv: mechanical looseness thiab deformation tshwm sim raws li qhov sib txawv ntawm qhov tob, thiab cov qauv feem ntau rov ua dua.

Koj tuaj yeem ua dab tsi hauv -tsev: worktable leveling and column lock checks.

Fixture deformation yog ib lub khw muag khoom ntau tshaj plaws - hauv pem teb ua rau: nyias daim hlau thiab qhov ntev yog tshwj xeeb tshaj yog yooj yim rau warp los ntawm clamping siab. Hloov txoj kev clamping thiab khiav ib qho kev sib piv.

Rau rotary -axis circumferential marking, kuj xyuas rotary-axis concentricity thiab rotational ceev stability.

Hla -check tricks:Tig ib feem 90℃thiab kos dua. Yog hais tias tus qauv tsis sib npaug tig nrog ib feem, qhov teeb meem feem ntau yuav fixturing lossis cov khoom siv. Yog hais tias tus qauv tsis sib xws nyob rau hauv tib txoj kev taw qhia, qhov teeb meem muaj feem ntau nyob rau hauv txoj kev kho qhov muag lossis scan system.

6. Cov ntaub ntawv thiab cov ciam teb: Qhov sib txawv txhua tus tsis nco qab

Cov lus teb luv luv: yog tias kev kuaj xyuas qhov muag, hluav taws xob thiab cov tshuab ua kom huv, saib cov khoom nws tus kheej.

Laser npav yog rhiab heev rau cov khoom:

• Txawm tias tib qib los ntawm cov khoom sib txawv tuaj yeem sib txawv ntawm qhov sib txawv ntawm qhov sib txawv, oxide txheej thiab txheej thickness.
• Kev sib txawv nto tiav - sandblasted, polished, anodized, pleev xim los yog coated - muaj qhov sib txawv kiag li.
• Nyob rau hauv sib sib zog nqus engraving, cov qauv sab hauv (cam khwb cia, forged los yog welded cheeb tsam) cuam tshuam qhov tob uniformity.

Yuav qhia li cas:Kos ob cov khoom siv ib sab ntawm ib sab nrog tib qhov tsis sib xws ntawm tib lub tshuab. Yog tias qhov tshwm sim hloov thaum cov khoom hloov pauv, tsis txhob hloov kho lub tshuab - khiav ob pawg ua ke thiab sib piv ua ntej.

Rau cov ntaub ntawv tsis paub meej, xa cov qauv mus rau cov chaw tsim khoom rau kev ntsuas ntsuas nrog lub workpiece tiag tiag, tiag tiag nto thiab cov qauv tiag tiag. Qhov no yog qhov ua tau zoo dua li kev kwv yees tsis nyob deb. Kev xeem- cov qhabnias tau raug khi rau qhov tshwj xeeb batch thiab qhov chaw nyob thiab tsis tuaj yeem ua qhov muag tsis pom kev rau txhua pawg.

Rau cov cua sov-sensitive lossis coated plastics, aUV laser marking tshuabfeem ntau muab cov txiaj ntsig zoo sib xws vim tias 355 nm "txias" txheej txheem ua kom muaj cua sov me dua - thaj tsam cuam tshuam.

7. Xya-Txoj kev daws teeb meem kev txheeb xyuas

Khiav los ntawm cov kauj ruam hauv kev txiav txim. Feem ntau cov teeb meem nyob hauv 10-20 feeb.

1. Cov ntaub ntawv:Nqa daim duab ntawm qhov txhaum thiab cov ntaub ntawv sau tseg, laser qhov chaw, lub zog, ceev, zaus, qhov sib nrug ntawm qhov sib txawv thiab parameter- cov ntaub ntawv npe.
2. Nrhiav kom pom tseeb:Xyuas kom pom tseeb ntawm daim coupon xeem thiab paub meej tias lub workpiece nto yog nyob rau hauv lub focal dav hlau.
3. Kuaj qib:Tshawb xyuas worktable flatness thiab ib feem fixturing; txiav tawm warping thiab looseness.
4. Tshawb xyuas optics:Tshawb xyuas lub qhov rais tiv thaiv thiab F-theta lens huv; ntxuav yog xav tau.
5. Sib piv cov parameter:Kos rau tib qhov nrog qhov sib txawv ntawm qhov sib txawv, nrawm thiab luam theej duab lub tswv yim thiab nrhiav cov qauv hloov pauv. Rau cov pab pawg parameter uas tswj kev hla dhau feem ntau - scan ceev, hatch thiab qeeb - saib peblaser marking ceev qeeb? 5 tsis muajqhia.
6. Hla - xyuas:Kos tib qhov tsis sib xws ntawm qhov sib txawv thiab cov khoom sib txawv kom cais lub tshuab, qhov ntsuas thiab cov khoom ua rau.
7. Cov ntaub ntawv:Sau qhov hloov pauv ntawm txhua kauj ruam. Cov kauj ruam uas cov tsos mob hloov yog qhov twg lub hauv paus ua rau muaj sia nyob.

8. Thaum twg hu rau tus neeg tsim khoom

Nres tus kheej - daws teeb meem thiab tiv tauj tus neeg muag khoom yog tias koj pom ib qho hauv qab no:

Cov lus nug nquag

Q: Qhov nruab nrab yog qhov tob thiab cov npoo yog lub teeb - Kuv yuav ua li cas ua ntej?

A: Ua ntej paub meej tias lub workpiece yog qib thiab hauv lub dav hlau focal. Yog tias loj- cov npoo teb tseem ceeb tom qab ntawd, qhov teeb meem cuam tshuam nrog F-theta lens field flatness; hu rau cov chaw tsim khoom los soj ntsuam seb lub lens specification puas phim koj cov cim cim.

Q: Tib pawg ntawm qhov sib txawv, qhov tob sib txawv ntawm txhua tus - yog vim li cas?

A: Kev txheeb xyuas qhov tseem ceeb: qhov siab qhov sib xws (yog ua kom pom tseeb dua- tau kuaj xyuas tom qab txhua qhov kev hloov pauv?), cov khoom sib txawv ntawm cov khoom sib txawv, thiab seb cov ntaub ntawv parameter puas tau sau dua. Khiav peb cov qauv ib sab; qhov ua rau feem ntau yuav pom tseeb tam sim ntawd.

Q: Tib lub tshuab ua kom sib dua thiab sib dua thaum lub sijhawm - ua li cas?

A: Suspect lens kis kab mob thiab lub zog drift nyob rau hauv qhov kev txiav txim. Ntxuav lub qhov rais tiv thaiv ua ntej, tom qab ntawd sau seb qhov teeb meem tshwm sim tom qab lub tshuab tau ua haujlwm ib ntus. Yog tias nws tshwm sim, nug cov chaw tsim khoom los ntsuas qhov tseeb laser tso zis zog.

Q: Peb hloov cov ntaub ntawv thiab tib qhov tsis zoo saib ntau dua - lub tshuab puas lawm?

A: Tej zaum tsis yog. Laser npav yog rhiab heev rau batch thiab deg mob. Khiav ob lub batch ntawm ib sab kom paub meej tias qhov sib txawv ntawm cov khoom siv, tom qab ntawd txiav txim siab seb puas yuav kho qhov ntsuas lossis xa cov qauv rau kev sim. Tsis txhob maj hloov lub tshuab.

Q: Lub hwj chim zaub tsis tau hloov pauv, tab sis lub cim qhia meej dua - vim li cas?

A: Tso tawm lub zog thiab qhov tso tawm tiag tiag tsis yog ib txwm zoo ib yam. Xyuas kom pom tseeb thiab kev huv ntawm lub lens ua ntej, tom qab ntawd xav txog lub zog drift. Kev ntsuas cov zis tiag tiag xav tau cov cuab yeej tsim khoom lag luam; tsis txhob qhib qhov chaw laser koj tus kheej.

Xav tau kev pab nrog Laser Marking teeb?

Qhov tob tsis sib xws feem ntau tuaj yeem taug qab mus rau ib qho me me ntawm cov teeb tsa sib txawv. Yog tias koj tau dhau los ntawm daim ntawv txheeb xyuas thiab tseem xav tau kev txhawb nqa, peb pab neeg tuaj yeem khiav cov qhab nia xeem ntawm koj cov qauv tiag tiag thiab pab koj kaw qhov tsis ruaj khov. Rau kev pom dav dav ntawm kev xaiv tshuab, saib peblaser npav tshuab yuav phau ntawv qhia.